Process of preparing a tooth-healing preparation.



J ZEHETNER. v PROCESS-0F PREPARING A TOOTH HEALING PREPARATION.

APPLICATION FILED MAR. 22, 1909.

972,316. Patented Oct. 11,1910.

JosEr ZEHETNER, or VIENNA, AUsTRIA-nUNGARY.

rnocnss or PREPARING A TOOTH-HEALING ILREPARATION.

Specification of Letters Patent. 'Pafented Oct. 11, {910.

Application filed March 8, 1909. Serial No. 482,186.

To all whom it may concern:

Be it known that I, JOSEF ZEHBTNER, a subject of the Emperor ofAustria-Hungary, and resident of Vienna, in Austria- Hungary, haveinvented a certain new and useful Process of Preparing a Tooth-HealingPreparation, of which the following is a specification.

Products generally used in the trade under the name of tooth healingpreparations, do not in any way deserve that name, as they do not healhollow teeth, but owing to their-corrosive ingredients and the like,merely still the pain for a moment, and later, owing to the corrosiveaction, the pain begins again with greater violence.

Contrary to tooth healing preparations hitherto known, this inventionrelates to a process and apparatus for manufacturing a preparation whichreally heals hollow and inflamed teeth and does away with anytooth-ache. As has been proved by numerous practical experiments, theessential in gredient of thetooth preparation according to thisinvention is formic acid extracted from ants by means of alcohol.Curiously enough, meadow ants have been proved to be more particularlysuitable for the purpose in question, as, *when treated with alcohol,they supply in addition to the formic acid other organic substances, thecomposition of which has not been yet ascertained and which are ofspecial importance for healing hollow teeth. As in many cases it isimpossible to obtain the desired quantity of natural formic acid, it ispossible toreplace the natural formic acid partly by artificial formicacid. In manufacturing the healing preparation in question, the processis such that ants are treated for 10 to 14 days with alcohol of 96%strength, in the sun and the ants are then separated from the alcohol,the formic spirit remaining then for another eight to ten days in thesun. The alcohol and ants are in the following proportions:

Alcohol of 96% strength- 100 liters Living wood. ants 25 liters Livingmeadow ants 2811te'rs After having the ants separated from the alcoholthe ingredients given below are each added at an interval of five to sixdays,

which should be done preferably in the sun.

After all the ingredients have been mixed together the mixture is leftfor a few weeks in the sun and then distilled through the describeddistilling apparatus. The product obtained. by the distillation is leftagain for a few days when it willbe found ready' for export.

The. construction of the distilling apparatus as used for the-manufacture 'of the,

tooth preparation, is given by way of example in the accompanyingdrawing.

The mixture in question is introduced into a tank a surrounded by asecond casing I), the space between the two walls being filled withwater. 011 the tank a is then placed a cap or.lid 0 provided at itslower edge with a downward heading to which is connected the dischargepipe d for the distilled vapors. Through the cap 0 passes a spindle e towhich is secured a stirring device f consisting of wooden bars in theshape of a cross-or the like. All the parts of the distilling. apparatuswhich come into contact with the pre aration, must not be of metal butmade 0 earthenware or the like.

Under the distilling vessel is arranged a grate g on which is placedthefuel. Above the sald grate g is arranged a second grate ber 71 and thepipe or flue k is established by means of openings l. These openingsnear the chimney have a smaller cross-sectlon than those provided at theopposite point.

In the smoke discharge flue m is arranged a-worm n rotated by theescaping combustion gases. The said rotating movement is transmitted bymeans of a chaln drive ora cord to the spindle of the stirring device.In that way the reparation is automatically stirred during the wholetime of the distillationin order to prevent it from settling on theboiler walls. The vapors escaping through the pipe d pass into a coolingdevice 1) through which .cold water circulates continuously. The waterfrom the said cooling tank can be discharged by means of a cock 9. Thecondensed vapors of distilla tion pass into a tank 1", "bottle or thelike arranged below the coolin coil. The product obtained by the distilation is left for tled and made ready for export.

What I claim as my invention and desire to secure by Letters Patent isThe process of preparing a tooth healing preparation which consists insuccessively adding to an alcoholic solution of formic acid, carbolicacid, benzoic acid, peppermint oil, Wintergreen oil, thyme oil, ca eputoil, eucalyptus oil, and eugenol substantially as described, and finallydistilling the resultant mixture with constant stirring.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

JOSEF ZEHETNER.

Witnesses:

' AUG. RUDOLF FREUMERY,

SOHNEDER JOHANSBERGER.

